Valve for boiler and pump connections.



F. A. REYNOLDS.

VALVE FOR BOILER? AND PUMP CONNECTIONS.

I .urmornon rum) JULY 11,1902. 10 110mm.

To TANK WITNESSES:

PATEN'I'ED AUG. 25, 1903.

Patented August 25, 1903.

I UNITEDZMSTATES PATENT OFFICE.

FRANK ARTHUR REYNOLDS, OF LEWISTON, MAINE, ASSIGNOR, BY lVlE S NE ASSIGNMENTS, TO F. A. THoMsoN, TRUSTEE, on NEW YORK, N. Y.

VALVE FOR BOILER AND PUMP CONNECTIONS.

SPECIFICATION forming part of Letters Patent No. 737,273, dated August 25, 1903.

Application filed July 11,1902. Serial No. 115,120. (No model.)

To all whom it may concern.-

Be it known that I, FRANK ARTHUR REY- NOLDS, of Lewi'ston, Androscoggin' county, Maine, have invented certain new and useful Improvements in Valves for Boiler and Pump Connections, of which the-following is a full, clear, and exact description.

My invention relatesto improvements in valves such asare adaptedjfor-usei'n boiler and pump connections; andtheobject of my invention is to produce a very simple device which is especially adapted for use in connection with the pumps and boilers of automobiles, although it can of course be used for analogous purposes.

In the construction of motor-vehicles it is the practice to use a small boiler. The wator-supply is also necessarily limited, and it is desirable to save water and fuel as much as possible. As generally used, however, I have found in practice that the water in the boiler influenced by the high steam-pressure will leak back to a considerable extent through the check of the water-feed pipe, so that the water goes down quickly in the boiler and has to be pumped over and over, and gherefore there is a waste of both water and uel.

My improved device is especially intended pump to thesupply tank, so that the water is simply circulated'by the pump from the tank through the improved valve and back again to the tank. By closing the pipe back to the. tank the supplyspip to the boiler is automatically opened. s

To these ends my invention consists of certain features of construction and combinations of parts, which will be hereinafter described and claimed. I

Reference is to be had to the accompanying line 2 2 of'Fig. 1.

drawings, forming part of this specification, in which similar figures of reference refer to similar parts throughout both views.

Figure 1 is a longitudinal section of my improved valve. Fig.

: The valve has an elongated casing 10, the exterior shape of which is of course immatefiahandextending longitudinally within this casing and projecting from one end thereof iisia valve-stem 11, having a. threaded portion '12-, which fits in a correspondingly-threaded par't'13 of the valve-casing. The valve-stem extends through an ordinary stufling-box 14 and has a suitable handle 15.

The valve-stem 11 carries two valves 16 and 2 is across-section on the 17,,which are rigidly formed on or fastened {10 at'a"point between the two valves 16 and 17, and'the return-pipe tothe tank connects with the casing 10 at a point behind thevawe 16; If it is desired to have the pump deliver ';to the boiler, the handle 15 is turned slightly soasto'close the valve 16 and open the valve 17. Thus the water comes in through the pipe 22 and passes out through the pipe 21 to the boiler. When the boiler has sufficient water, the handle 15 is turned in the opposite direction, the valve 17 is closed, and the valve 16' open. When this is done, the boiler-pipe is wholly sealed, and the circulation is from the pipe 22, through the casing 10, back" through the pipe 23, to the tank. Thus itwillbe seen that I provide a very simple means for direct-' ing the constant circulation either to the boiler or back to the tank,"as"desired,"andfor preventing anyloss of water by leakage from the boiler.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-v 1. An apparatus of the kind described com- IOO prising a valve-casing having opposed valveseats therein, a pair of valves movable in unison between the valve-seats so that when one valve is opened the other is closed, a pipe connection through the casing between the two valves, and a pipe connection through the casing behind each valve.

2. An apparatus of the kind described comprising a valve-casing having opposed valveseats therein, the seats being adjustable back and forth in relation to each other, a pair of valves movable in unison to fit the seats so that when one valve is open the other is closed, pipe connections through the casing behind each valve, and a pipe connection through the casing between the two valves.

3. An apparatus of the kind described comprising a valve-casing having opposed valveseats therein, a valve-stem movable longitudinally in the casing, a pair of valves carried rigidly on the stem and fitting the valveseats, pipe connections through the casing behind each valve, and a pipe connection through the casing between the two valves.

4-. An apparatus of the kind described comprising a valve-casing having a stationary valve-seat therein, a bushing adjustable in the casing and provided With a second valve-seat, a longitndinally-movable valve-stem in the casing, a pair of valves carried rigidly on the stem and fitting the two valve-seats, a pipe connection through the bushing, a pipe connection through the casing behind the stationary valve-seat, and a pipe connection through the casing between the two valves. In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

FRANK ARTHUR REYNOLDS. Witnesses:

T. J MURPHY, JOHN L. READE. 

